public copilMDI(containerMD parinte)
{
InitializeComponent();
ControlBox = false;
this.ActiveControl = txtinput;
btnro.Hide();
butrasp.Hide();
}
private void StartGm_Click(object sender, EventArgs e)
{
int i = 0;
containerMD frm1 = new containerMD();
Hide();
for (i = 0; i < 3; i++)
{
var buttons = panel1.Controls.OfType <RadioButton>().ElementAt(i);
buttons.Checked = false;
}
frm1.ShowDialog();
BringToFront();
Show();
}